Along with his young son, Ji-ho, Woo-jin misses his wife Soo-a, who died after promising to return a year later with the rainy season. Miraculously, they reunite with Soo-a when the rainy season comes around, but she has no memory...

A series of grotesque murder cases takes place on rainy days. Detective Hisashi Sawamura (Shun Oguri) works to catch the murderer like he has done with past cases, but he soon realizes the murderer's next target is his wife and...

In the chaotic days of the 1960s, Misuzu, a lonely high school girl from a troubled family, finds sanctuary with her nihilistic brother, Ryo, and his friends. They pass their days hanging around a shadowy jazz cafe bar, indulging themselves in a life of sex, drugs and alcohol. Social unrest simmers, while their relationships gradually falter. Misuzu gets drawn into a dangerous plot against society that was hatched by one of the rebellious youths, Kishi; they will rob a bank car of 300 million yen! The two accomplices set out for numerous rehearsals, while in their hearts they secretly and quietly become even closer. Then one rainy day, aided by coincidence, they pull off their heist successfully, which has a huge impact throughout Japan. However, it brings Misuzu only a great sense of loss and sadness, which she had never anticipated...

After her car breaks down on a rainy night, Miss Liang enters a nearby coffee shop called Cafe 6. The owner of the shop finds out that Miss Liang has just gotten into a fight with her boyfriend who is currently overseas, so to kill time, he shares a story of his time back in 1996. During that year, Guan Min-lu and his good friend Xiao Bo-zhi always hang out together. Min-lu is secretly in love with Li Xin-rui while Bo-zhi is attracted to Xin-rui's best friend, Cai Xin-yi. The four young teenagers share a good relationship with each other and spend their days happily every day. But as their graduation day draws near, they wonder if they can still stay committed with each other after going their separate ways.

When Sung-Joon (Park Seo-Joon) was young, he was ugly and fat. He also didn’t have any friends, but popular and pretty Hye-Jin (Hwang Jung-Eum) became his friend. She gave him comfort on rainy days when Sung-Jung feels traumatised. They held a special connection with each other, but Sung-Joon and his father moved to the United States. 15 years later, Sung-Joon returns to South Korea. He and Hye-Jin are set to meet again for the first time in many years, but Hye-Jin is unable to show herself in front of Sung-Joon who is looking for her. Both of their appearances have completely changed. Sung-Joon is now handsome and perfect in his appearance, while Hye-Jin looks nothing like her former pretty self. Hye-Jin is also unemployed and looking for a job. Hye-Jin then asks her best friend Ha-Ri (Koh Joon-Hee) for help. Ha-Ri is to pretend she is Hye-Jin and go meet Sung-Joon. At their meeting, Ha-Ra pretends to be Hye-Jin and tells Sung-Joon that she is leaving for England the next day to study. Later, Hye-Jin, as an intern at a fashion magazine, meets Sung-Joon who is an editor at the fashion magazine.